YEC vs. OEC
If you believe God created the earth circa 4,000 bc and chose to reveal himself to His chosen, the jews, i can follow your logic (well sorta).
However, if you belive in OE, then how do you still hold xianity valid? B/c you understand relatively speaking, judaism is a much younger religion vis-a-vis (i luv that term, makes ya sound pedantic--luv that last word too--that's all i got outta ma edumacation) other earth religions: i.e. people of the Aryan Mtn regions, Far East, Egypt, etc.
So wouldn't Yahweh have revealed himself to the FIRST people of the world (who obviously were not people in Palestine circa 4,000 bc)?
EDUCATION! EDUCATION! EDUCATION!